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Heliostat Field Arrangement Method Based on Maximum Density Arrangement and Biomimetic Arrangement

A technology of maximum density and layout method, which is applied in the direction of solar thermal energy, solar heating system, lighting and heating equipment, etc., can solve the problems of different application ranges, and achieve the effect of high efficiency of concentrating and heat-collecting fields

Active Publication Date: 2020-11-06
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the advantages and scope of application of various mainstream methods are different, and there are many difficulties in the efficiency calculation of the tower heliostat field and the determination of the field coordinates

Method used

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  • Heliostat Field Arrangement Method Based on Maximum Density Arrangement and Biomimetic Arrangement
  • Heliostat Field Arrangement Method Based on Maximum Density Arrangement and Biomimetic Arrangement
  • Heliostat Field Arrangement Method Based on Maximum Density Arrangement and Biomimetic Arrangement

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Embodiment 1

[0055] according to Figure 1-Figure 6 The heliostat field arrangement method based on the maximum density arrangement and the bionic arrangement is shown, including the following steps

[0056] The heliostat field arrangement method based on the combination of maximum density arrangement and bionic arrangement, is characterized in that it includes the following steps

[0057] Step 1: Determine the dense arrangement area

[0058] The minimum center distance required for cleaning and heliostat operation requirements is defined as DM, based on this as the basic requirement, an equilateral triangle is formed between adjacent heliostats, and the side length of the equilateral triangle is greater than or equal to DM; Equilateral triangles are arranged in columns or rows to obtain an arrangement area scheme;

[0059] Step 2: Calculate the number of heliostats that can be arranged in dense areas

[0060] For the dense arrangement area determined in step 1, calculate the number of ...

Embodiment 2

[0124] The present invention combines the overall optical efficiency and other indicators of a 50mw tower photothermal project for comparison. Table 1 presents the relevant details.

[0125] Table 1 Comparison table of parameters of each lens field

[0126]

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Abstract

The invention belongs to the technical field of mirror field optimization of tower-type solar thermal power generation systems, and particularly relates to a heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement. The heliostat field arrangement method includes the six steps that an intensive arrangement area is determined; the number of heliostats capable of being arranged at the dense area is calculated; the number of heliostats arranged in an external mirror field is calculated; the coordinates of the heliostats in the external mirror field are calculated; the total mirror field efficiency is calculated; and a mirror field is laid; and at the near-field area with the high cosine efficiency and the high atmospheric attenuation efficiency, under the premise of meeting the requirements of cleaning and operation and maintenance, the heliostats can be arranged as much as possible at the efficient area. According to the heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement, an improved bionic arrangement method is adopted in a far field, and under the condition that the landuse range and the number of the heliostats are determined, the efficiency of shadow shielding among the heliostats in the area reaches the highest through bionics arrangement; and a gradient descent method is used for optimizing boundary optimization between a near-tower area and a far-tower area, the overall efficiency of a condensation and heat collection field reaches the highest.

Description

technical field [0001] The invention belongs to the technical field of mirror field optimization of a tower type solar thermal power generation system. In particular, it relates to a heliostat field arrangement method based on maximum density arrangement and bionic arrangement. Background technique [0002] Solar thermal utilization technology is one of the technologies with a high degree of commercialization and popularization and application in the field of renewable energy technology. The tower solar thermal power generation system is an important direction of solar thermal utilization. In the tower solar thermal power generation system, a reasonable arrangement of the heat collecting mirror field can improve the conversion efficiency of the system from light to heat, and at the same time reduce the land use area and the amount of wires and cables, thereby reducing investment. However, the advantages and scope of application of various mainstream methods are different, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24S50/20
CPCY02E10/47
Inventor 周治肖斌彭怀午王晓文龙陈鹏飞段杨龙
Owner POWERCHINA XIBEI ENG
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